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G95 Feed per revolution mode / Live tool rigid tap, face
Haas NGC G-code · Mill, Lathe
On mills: Feed per revolution mode
F is in inches per spindle revolution. In G84 and G74 the F can then be the thread pitch directly.
Format
How it works
Modal, feed group 05. Cancel with G94.
Example program
G84 G99 Z-.75 R.1 F.05 (F IS THE PITCH OF A .250-20 TAP)
G80 G94 (CANCEL CYCLE AND BACK TO FEED PER MINUTE)
Example is in inch. Check offsets and clearances first.
Watch out for
- A feed per minute value left in G95 is far too fast. Change back with G94 right after.
On lathes: Live tool rigid tap, face
Rigid taps an axial hole in the face with a live tool. S sets the live tool RPM. Feed equals the lead in G99.
Format
Addresses
| Address | What it does |
|---|---|
Z | Hole bottom |
R | R plane |
F | Feed, equal to the lead in G99 |
X | Diameter of the hole position |
C | C axis angle of the hole |
Y | Y position, Y axis lathes |
W | Incremental Z depth |
Q | Peck depth, optional |
How it works
Modal, group 09. Cancel with G80.
Example program
G99 (FEED PER REV)
G00 G54 X1.5 C0 Z.5 M08 (FIRST HOLE ON 1.5 BOLT CIRCLE)
S500 (LIVE TAP RPM)
…
The full 8-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- G99 must be active.
- Command S before G95.
- Keep X between machine zero and spindle center. Do not go past center.
Related codes
G94 · G84 · G74 · G186 · G195 · G80
G95 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Feed per revolution |
| Okuma OSP | Feed per revolution |
| Mitsubishi M70 M80 | Feed per revolution |
| Brother Speedio | Feed per revolution |
| Siemens 840D 828D | Feed per spindle revolution |
| Fagor 8055 8065 | Feed per revolution |
| LinuxCNC Tormach | Feed per revolution |
| Mach3 Mach4 | Feed per revolution |
| Hurco WinMax (NC) | Feed per revolution |
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